Security Guard Training in Florida - Obey security Guard and Firearms Training. To become an unarmed security guard in the state of Florida, you need to obtain Class "D" Security Guard License.There are several requirements that you should follow in order to apply for security guard license. Be at least 18 years old. Be a citizen or legal resident alien of the U.S. or have been granted authority to work in the U.S. by (USCIS).Complete the required security guard training. Call us if there are any questions, before you start security guard training. Become a security guard and get your security guard licenses in a 2, 3 days. class d license and class g licenses available.To become an unarmed security guard in Florida, you will first need to obtain your Class "D" Security Guard even if you..